I71.9

Applicable To

• Aneurysm of aorta

• Dilatation of aorta

• Hyaline necrosis of aorta

Approximate Synonyms

• Aneurysm of aorta

• Aneurysm of descending aorta

• Aortic aneurysm

• Descending aorta aneurysm

• Penetrating ulcer of aorta

• Penetrating ulcer of artery

Clinical Information

• A sac formation resulting from the localized dilatation of the wall of the aorta.

• An abnormal balloon- or sac-like dilatation in the wall of aorta.

• Most aneurysms — abnormal bulges or “ballooning” in the wall of an artery — occur in the aorta. The aorta is the main artery that carries blood from the heart to the rest of the body. There are two types of aortic aneurysm:

• Sac formed by the dilatation of the wall of the aorta.

Details

• I71.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM I71.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of I71.9 – other international versions of ICD-10 I71.9 may differ.